ACCRUED ENVIRONMENTAL REMEDIATION COSTS (Accrued Environmental Remediation Costs) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Loss Contingencies [Line Items]
Accrued Environmental Remediation Costs	$ 19,852	$ 17,864
Continuing Operations [Member]
Loss Contingencies [Line Items]
Accrued Environmental Remediation Costs	9,136	6,876
Retained From Former Chemicals Business [Member]
Loss Contingencies [Line Items]
Accrued Environmental Remediation Costs	$ 10,716	$ 10,988